Invention Application
- Patent Title: A HYBRID RUNNING TRACK ARTICLE AND METHOD FOR PREPARING THE SAME
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Application No.: PCT/CN2020/134457Application Date: 2020-12-08
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Publication No.: WO2022120558A1Publication Date: 2022-06-16
- Inventor: ZHANG, Chao , SUN, Gang , HU, Xiaolian , FENG, Yanli , QIN, Shihao
- Applicant: DOW GLOBAL TECHNOLOGIES LLC [US]/[US] , ZHANG, Chao [CN]/[CN] (SC) , SUN, Gang [CN]/[CN] (SC) , HU, Xiaolian [CN]/[CN] (SC) , FENG, Yanli [CN]/[CN] (SC) , QIN, Shihao [CN]/[CN] (SC)
- Assignee: DOW GLOBAL TECHNOLOGIES LLC [US]/[US],ZHANG, Chao [CN]/[CN] (SC),SUN, Gang [CN]/[CN] (SC),HU, Xiaolian [CN]/[CN] (SC),FENG, Yanli [CN]/[CN] (SC),QIN, Shihao [CN]/[CN] (SC)
- Current Assignee: DOW GLOBAL TECHNOLOGIES LLC [US]/[US],ZHANG, Chao [CN]/[CN] (SC),SUN, Gang [CN]/[CN] (SC),HU, Xiaolian [CN]/[CN] (SC),FENG, Yanli [CN]/[CN] (SC),QIN, Shihao [CN]/[CN] (SC)
- Agency: SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC
- Main IPC: B32B25/14
- IPC: B32B25/14 ; B32B27/40 ; C08G18/08 ; C08G18/12 ; C08G18/24 ; C08G18/28 ; C08G18/32 ; C08G18/48 ; C08G18/75 ; C08L23/16 ; C08L75/04 ; C08L75/08 ; C09D175/08 ; E01C13/00
Abstract:
The present application provides a hybrid running track article, comprising, from top to bottom: (I) a top coating layer made from a first composition comprising an externally emulsified polyurethane dispersion and rubber particles, wherein the externally emulsified polyurethane dispersion is derived from: (Ai) an isocyanate component comprising one or more compounds having at least two isocyanate groups, (Bi) an isocyanate-reactive component comprising one or more compounds having at least two isocyanate-reactive groups; (Ci) an optional catalyst, (Di) an external emulsifier, (Ei) a chain extender and (Fi) water, and (II) a bottom layer made from a second composition comprising a 1K solvent-free polyurethane binder and rubber particles.
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